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Finding the Third Proportional to 155,592 and 316,891

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Solution

The third proportional to 155,592 and 316,891 is: 645,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,592 : 316,891 = 316,891 : x
  2. Step 2: Convert to fraction form
    155,592/316,891 = 316,891/x
  3. Step 3: Cross multiply
    155,592x = 316,891 × 316,891
  4. Step 4: Simplify right side
    155,592x = 100,419,905,881
  5. Step 5: Solve for x
    x = 100,419,905,881/155,592
  6. Step 6: Final answer
    x = 645,405.33

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.